Energy metabolism: practice question

A Biochemistry question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Biochemistry · Energy metabolism

Sample item

Which process generates most ATP during aerobic metabolism?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

C. Oxidative phosphorylation

Oxidative phosphorylation uses the electron transport chain and proton gradient in mitochondria to generate most ATP from aerobic fuel metabolism.

Option by option

  • A. Glycogen synthesis

    Glycogen synthesis consumes energy.

  • B. Urea formation

    Urea formation disposes of nitrogen.

  • C. Oxidative phosphorylation (correct)

    Correct: electron transport drives the largest ATP yield.

  • D. Transamination

    Transamination transfers amino groups.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

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Questions about this Biochemistry question

What is the answer to this Biochemistry question?

The best answer is C, Oxidative phosphorylation. Oxidative phosphorylation uses the electron transport chain and proton gradient in mitochondria to generate most ATP from aerobic fuel metabolism.

Why is "Glycogen synthesis" not the answer?

Glycogen synthesis consumes energy.

Why is "Urea formation" not the answer?

Urea formation disposes of nitrogen.

Why is "Transamination" not the answer?

Transamination transfers amino groups.

What concept does this question test?

It tests Energy metabolism in Biochemistry. The correct option holds because: Correct: electron transport drives the largest ATP yield.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Energy metabolism?

Build one table of enzyme deficiency, disease, inheritance and key finding, then revise it by spaced recall. Then use the flashcards and the other Biochemistry questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.